UR-6LH | GE Multilin | Universal Relay Digital I/O Card
Manufacturer: GE Fanuc
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Part Number: UR6LH
Condition：New with Original Package
Product Type: Protection and Control Relay Module
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The UR6LH (also identified by the assembly prefix IS220UR6LH) is an authoritative I/O Module engineered for the GE Multilin Universal Relay (UR) series. This module is a mechanical necessity for expanding the monitoring and control capabilities of high-performance protection platforms. It specifically provides a combination of 8 high-speed digital inputs and 2 robust Form-C (changeover) relay outputs, allowing for precise interface with auxiliary equipment, breakers, and field sensors. Designed for the rigorous demands of utility substations and industrial power plants, the UR6LH ensures deterministic signal processing and reliable command execution within the UR family’s modular architecture.
Detailed Technical Specifications
| Attribute | Details |
| Manufacturer | GE Multilin / General Electric |
| Model Number | UR6LH |
| Part Number | IS220UR6LH |
| Series | Universal Relay (UR) Series |
| Product Type | Digital I/O Module |
| Digital Inputs | 8 Channels (Threshold-programmable) |
| Relay Outputs | 2 Form-C (Changeover) contacts |
| Input Thresholds | Configurable via UR software (e.g., 24V, 48V, 125V, 250V DC) |
| Contact Rating | High-capacity breaking and carry ratings for breaker control |
| Communication | Integrated with UR backplane for real-time logic |
| Operating Temp | -40 °C to +70 °C (-40 °F to 158 °F) |
| Dimensions | 220 × 125 × 50 mm (Standard UR Rack Module) |
| Weight | 1.15 kg |
| Certifications | CE, UL, IEC 61850 compliant |
Engineering and Operational Guidelines
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I/O Expansion Expertise: The UR6LH allows for flexible system scaling. This expertise enables engineers to tailor the protection relay to specific bay requirements, whether for transformer tap-changer control or generator auxiliary monitoring, without replacing the entire relay chassis.
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Form-C Relay Reliability: A trustworthy feature of this module is the dual Form-C output relay set. Form-C contacts provide both normally open (NO) and normally closed (NC) positions, offering mechanical flexibility for fail-safe interlocking and complex signaling logic.
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Authoritative Signal Conditioning: Each of the 8 digital inputs features industrial-grade filtering and debounce logic. This ensures that electrical noise from high-voltage switching environments does not cause nuisance alarms or incorrect logic execution within the UR processor.
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Substation Integration: Fully compliant with modern digital substation requirements, the module’s data is accessible via the main UR controller's communication ports, supporting protocols like IEC 61850, DNP3, and Modbus for seamless SCADA integration.
Technical FAQ
Q: Can the input voltage thresholds be adjusted on the UR6LH?
A: Yes. The UR6LH inputs are generally configurable via the EnerVista UR Setup software. This allows the module to be used across different substation DC battery voltages (e.g., 48VDC or 125VDC) by setting the appropriate pickup and dropout levels.
Q: Is the UR6LH module hot-swappable?
A: While the UR series is modular, it is a professional best practice to power down the relay chassis before removing or inserting I/O modules like the UR6LH. This prevents potential backplane communication errors or unintended relay operations.
Q: What is the primary difference between UR6LH and standard output modules?
A: The UR6LH is a hybrid module. Unlike "all-input" or "all-output" boards, it balances 8 inputs with 2 Form-C outputs, making it an ideal choice for localized control tasks that require both feedback monitoring and command execution in a single slot.